CN108806421A - A kind of physics force analysis model learning apparatus - Google Patents
A kind of physics force analysis model learning apparatus Download PDFInfo
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- CN108806421A CN108806421A CN201810749253.7A CN201810749253A CN108806421A CN 108806421 A CN108806421 A CN 108806421A CN 201810749253 A CN201810749253 A CN 201810749253A CN 108806421 A CN108806421 A CN 108806421A
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- laser pen
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- pen
- lower mold
- upper die
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
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Abstract
The present invention proposes a kind of physics force analysis model learning apparatus, it is the upper die body and lower mold body of triangular prism including shape, laser pen is set on the side of upper die body and lower mold body and for placing the rectangular channel of laser pen, the laser pen includes the first laser pen on the side of upper die body and the second laser pen on the side of lower mold body, the head end of the first laser pen is provided with connector, and the head end of the second laser pen is provided with the link slot coordinated with connector.The shape of upper die body provided by the invention and lower mold body can carry out multiple combinations according to topic type, and it carries out being easy to clearing separate body force and respective stress when global analysis and isolation analysis, change is abstracted as specific, it greatly facilitates students understanding and grasp global approach and isolation method, accuracy rate is higher.The reasonable design of the present invention, simple in structure, suitable large-scale promotion.
Description
Technical field
The invention belongs to middle school student's assisted learning appliance technology more particularly to a kind of physics force analysis model learnings
Apparatus.
Background technology
" global approach " and the two methods that " isolation method " is that frequency of use is very high in Middle School Physics course of solving questions, but specific
" global approach " when is chosen in operating process, when chooses " isolation method ", it actually optimizing according to problem
Selection.In general, the detailed problem if required problem is not related to the function Characteristics in system, or during not being related to, it should
It is preferential to choose global approach；If required problem is related to the function Characteristics in system, it should which the preferential simple object of stress of choosing carries out
Isolation；If required problem be related to during detailed problem when, it should preferentially choose simple process and be isolated.
In current teaching process, some students always obscure global approach and some power in isolation method, cause to solve
Topic thinking is unintelligible, and the consequence directly generated is exactly the answer for increasing solution time, or even must make mistake, crucial still to being
The grasp of global approach and isolation method is unskilled.To obtain higher efficiency of solving a problem, traditional method is exactly to practice in conjunction with a large amount of
It practises, but some is understood for slow classmate, unless understanding global approach and isolation method completely, otherwise receive
Effect is difficult satisfactory, and the puzzlement of oneself can not be fed back to teacher, and global approach and isolation method by many classmates in time
Inherently relatively more abstract, this also reflects the deficiency on some teaching aids and schooling apparatus in fact.
Invention content
The present invention is directed in above-mentioned teaching process the problems of in terms of analytical mechanics problem, proposes that a kind of design is closed
It manages, is simple in structure, student's understanding problem and a kind of physics force analysis model learning apparatus easy to use can be accelerated.
In order to achieve the above object, the technical solution adopted by the present invention is a kind of physics force analysis provided by the invention
Model learning apparatus, including shape are the upper die body and lower mold body of triangular prism, and the upper die body and lower mold body are by transparent material system
At and respectively include two bottom surfaces and three sides, setting laser pen and for placing the rectangle of laser pen on the side
The end of slot, the laser pen is hinged in rectangular channel, and the laser pen includes the first laser on the side of upper die body
Pen and the second laser pen on the side of lower mold body, the head end of the first laser pen are provided with connector, and described second
The head end of laser pen is provided with the link slot coordinated with connector.
Preferably, the height of the link slot is equal to the 1/2 of laser the diameter of pen.
Preferably, the laser pen includes laser diode, the laser diode right avertence in the first laser pen in
The center line of laser pen, the laser diode left avertence in the second laser pen is in the center line of laser pen.
Preferably, the cross section of the triangular prism is isosceles right triangle, non-right-isosceles triangle, obtuse angle triangle
One kind in shape or acute triangle.
Preferably, the upper die body and the transparent material of lower mold body of being made is acrylic, makrolon or polystyrene
In one kind.
Compared with prior art, the advantages and positive effects of the present invention are,
1, a kind of physics force analysis model learning apparatus provided by the invention can carry out a variety of differences according to specific topic type
Combination, when with global approach, first laser pen on face and second laser pen that two are contacted with each other are connected, laser
The light beam of pen, which is blocked, just not to be had to refer to internal power, and other power are indicated with the light beam that laser pen is sent out on other sides, and
Different loading angles can be designed by adjusting the angle of laser pen；When with isolation method, two laser pens on contact surface are decomposed
It opens, light beam is just shown again, represents respectively suffered power, the light beam table that other power remain unchanged with the laser pen on not ipsilateral
Show, and laser pen and the tie point of side are stress point.It carries out holding very much when global analysis and isolation analysis through the invention
Easily body force and respective stress are separated with clearing, change is abstracted as specifically, is greatly facilitated students and is understood and grasp global approach
And isolation method, accuracy rate are higher.The reasonable design of the present invention, simple in structure, suitable large-scale promotion.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for ability
For the those of ordinary skill of domain, without having to pay creative labor, others are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of overall structure diagram for physics force analysis model learning apparatus that embodiment provides；
Fig. 2 is the structural schematic diagram for the first laser pen that embodiment provides；
Fig. 3 is the structural schematic diagram for the second laser pen that embodiment provides；
Fig. 4 is a kind of application of the physics force analysis model learning apparatus that provides of embodiment in the first inclined-plane problem
Schematic diagram；
Fig. 5 is a kind of application of the physics force analysis model learning apparatus that provides of embodiment in second of inclined-plane problem
Schematic diagram；
Fig. 6 is a kind of application of the physics force analysis model learning apparatus that provides of embodiment in the third inclined-plane problem
Schematic diagram；
Fig. 7 is a kind of physics force analysis model learning apparatus for providing of embodiment in a kind of planar object combinatorial problem
On application schematic diagram；
In above each figure, 1, upper die body；2, lower mold body；3, laser pen；31, first laser pen；32, second laser pen；33,
Laser pen switchs；4, rectangular channel；5, connector；6, link slot.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawings and examples
The present invention will be further described.It should be noted that in the absence of conflict, in embodiments herein and embodiment
Feature can be combined with each other.For sake of convenience, hereafter such as there are "upper", "lower", "left", "right" printed words, only indicate and attached drawing sheet
The upper and lower, left and right direction of body is consistent, does not play restriction effect to structure.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
With using implementing different from other modes described here, therefore, the present invention is not limited to the specific of specification is described below
The limitation of embodiment.
Embodiment, as shown in Figure 1, Figure 2 and Figure 3, a kind of physics force analysis model learning apparatus provided by the invention, packet
The upper die body 1 and lower mold body 2 that shape is triangular prism are included, the upper die body 1 and lower mold body 2 are made of clear material and wrap respectively
Include two bottom surfaces and three sides, setting laser pen 3 and for placing the rectangular channel 4 of laser pen on the side is described to swash
The end of light pen 3 is hinged in rectangular channel 4, and the laser pen 3 includes 31 He of first laser pen on the side of upper die body 1
Second laser pen 32 on the side of lower mold body 2, also laser pen switch 33, the head end setting of the first laser pen 31
There are connector 5, the head end of the second laser pen 32 to be provided with the link slot 6 coordinated with connector 5.Wherein, using transparent material
The direction that material allows for some power can pass through another upper die body in combination when being indicated with the light beam of laser pen
Or lower mold body, facilitate laser beam that can pass through upper die body or lower mold body so being arranged to transparent material, does not influence to use laser light
Beam indicates the direction of power and power.The upper die body 1 and the transparent material of lower mold body 2 of being made is acrylic, makrolon or poly-
One kind in styrene, these three are more commonly used transparent materials, may serve to do upper die body and lower mold body, only hard
Different on degree, the hardness crescendo of acrylic, makrolon and polystyrene three, comprehensive performance are gradually good.
Further, in order to meet the requirement of different topic types, the cross section of the triangular prism provided by the invention is isosceles
One kind in right angled triangle, non-right-isosceles triangle, obtuse triangle or acute triangle.It is common in Middle School Physics topic
Angle has 30 °, 45 °, 60 °, 90 °, 120 °, and triangular prism solves the problems, such as inclined-plane, such as Fig. 4 using most common angle is particularly advantageous,
For an example inclined-plane problem of the combination and non-right-isosceles triangle composition of two cross section isosceles right triangles；Such as figure
5, for another inclined-plane problem that two cross sections are non-right-isosceles triangle composition；It is that four cross section isosceles are straight such as Fig. 6
An example double-sided bevel problem of angle triangle and non-right-isosceles triangle composition；Such as Fig. 7, for it is multiple match each other it is non-
In the plane of isosceles right triangle composition the problem of system stress.It should be noted that substantially to inclined-plane in existing examination
On the angle of object there is no special angle requirement, it is important to serve as the angle of the die body on inclined-plane, the die body angle that the present invention is arranged
Main degree is exactly for serving as inclined-plane, to make problem indicate more specific by model；And when encountering gravity expression,
Whole device can be set up, whole gravity is indicated with the laser beam of the bottom for the die body for serving as inclined-plane, and when isolation method is each
From expression, the hinge angle of laser pen and link slot need to be only adjusted flexibly in the direction of other power.
The operation principle of the present invention is that when with global approach, the first laser pen 31 on face that two are contacted with each other
It is connected with second laser pen 32, the light beam of laser pen 3, which is blocked, just not to be had to refer to internal power, the other sides of other power
The light beam that upper laser pen is sent out indicates, and the angle for adjusting laser pen can design different loading angles；With isolation method
When, two laser pens on contact surface are disassembled, light beam is just shown again, represents respectively suffered power, and other power remain unchanged
It is indicated with the light beam of the laser pen on not ipsilateral, and laser pen and the tie point of side are stress point, other power remain unchanged
It is indicated with the light beam of the laser pen on not ipsilateral, and laser pen and the tie point of side are stress point.Through the invention
It carries out being easy to clearing separate body force and respective stress when global analysis and isolation analysis, change is abstracted as specifically, significantly
It facilitates students understanding and grasp global approach and isolation method, accuracy rate is higher.
In order to make two die body combinations keep the gap of contact surface smaller, the height etc. of the link slot 6 provided by the invention
In the 1/2 of 3 diameter of laser pen, in this case, when two laser pens on the contact surface of two die bodys are in combination just
Two laser pens can be contained in link slot 6, nor have laser beam and send out, and then avoided and student is understood
Topic forms interference.
In order to avoid laser beam is scattered when indicating the power parallel with place side at the interface, the present invention provides
The laser pen 3 include laser diode, the laser diode right avertence in the first laser pen 31 is in the center of laser pen
Line, the laser diode left avertence in the second laser pen 32 is in the center line of laser pen, in this case, the light that laser pen is sent out
Certain distance above or below inclined-plane where beam can be parallel to avoids laser beam and indicates unintelligible, and first laser
Pen 31 and second laser pen 32 are also easy to identification.
It should be noted that several concrete applications provided in this embodiment these be most common topic type, but not office
It is limited to these types, other can also be applied in topic type about the analysis of system force.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but it is every without departing from technical solution of the present invention content, according to the technical essence of the invention
To any simple modification, equivalent variations and remodeling made by above example, the protection domain of technical solution of the present invention is still fallen within.
Claims (5)
1. a kind of physics force analysis model learning apparatus, which is characterized in that including shape be the upper die body and lower die of triangular prism
Body, the upper die body and lower mold body are made of clear material and respectively include two bottom surfaces and three sides, on the side
Laser pen is set and for placing the rectangular channel of laser pen, the end of the laser pen is hinged in rectangular channel, the laser
Pen include positioned at upper die body side on first laser pen and the second laser pen on the side of lower mold body, described first
The head end of laser pen is provided with connector, and the head end of the second laser pen is provided with the link slot coordinated with connector.
2. a kind of physics force analysis model learning apparatus according to claim 1, which is characterized in that the link slot
Height is equal to the 1/2 of laser the diameter of pen.
3. a kind of physics force analysis model learning apparatus according to claim 2, which is characterized in that the laser pen packet
Laser diode is included, the laser diode right avertence in the first laser pen is in the center line of laser pen, the second laser pen
In laser diode left avertence in the center line of laser pen.
4. a kind of physics force analysis model learning apparatus according to claim 3, which is characterized in that the triangular prism
Cross section is one kind in isosceles right triangle, non-right-isosceles triangle, obtuse triangle or acute triangle.
5. a kind of physics force analysis model learning apparatus according to claim 4, which is characterized in that described that upper mold is made
Body and the transparent material of lower mold body are one kind in acrylic, makrolon or polystyrene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810749253.7A CN108806421A (en) | 2018-07-10 | 2018-07-10 | A kind of physics force analysis model learning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810749253.7A CN108806421A (en) | 2018-07-10 | 2018-07-10 | A kind of physics force analysis model learning apparatus |
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| Publication Number | Publication Date |
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| CN108806421A true CN108806421A (en) | 2018-11-13 |
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ID=64076074
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810749253.7A Pending CN108806421A (en) | 2018-07-10 | 2018-07-10 | A kind of physics force analysis model learning apparatus |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209371Y (en) * | 1994-07-09 | 1995-10-04 | 陈欣 | Force analysis demonstrator for body on slope |
| CN2710078Y (en) * | 2004-02-19 | 2005-07-13 | 杨智远 | Mechanical teaching aid model |
| CN101488295A (en) * | 2008-01-14 | 2009-07-22 | 罗宇科 | Demonstration apparatus for triangular component force bearing analysis |
| CN104167148A (en) * | 2014-08-27 | 2014-11-26 | 安庆职业技术学院 | Building structure comprehensive teaching model with light indication function |
| CN104269087A (en) * | 2014-08-02 | 2015-01-07 | 薛倩 | Shaft part stress analysis training aid |
| CN104794963A (en) * | 2015-05-12 | 2015-07-22 | 黄亿蓂 | Experimental facility capable of visually displaying direction of friction force |
-
2018
- 2018-07-10 CN CN201810749253.7A patent/CN108806421A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209371Y (en) * | 1994-07-09 | 1995-10-04 | 陈欣 | Force analysis demonstrator for body on slope |
| CN2710078Y (en) * | 2004-02-19 | 2005-07-13 | 杨智远 | Mechanical teaching aid model |
| CN101488295A (en) * | 2008-01-14 | 2009-07-22 | 罗宇科 | Demonstration apparatus for triangular component force bearing analysis |
| CN104269087A (en) * | 2014-08-02 | 2015-01-07 | 薛倩 | Shaft part stress analysis training aid |
| CN104167148A (en) * | 2014-08-27 | 2014-11-26 | 安庆职业技术学院 | Building structure comprehensive teaching model with light indication function |
| CN104794963A (en) * | 2015-05-12 | 2015-07-22 | 黄亿蓂 | Experimental facility capable of visually displaying direction of friction force |
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Application publication date: 20181113 |